Obdormition is when a part of our body, like our arm or leg, falls asleep. It feels funny, like it is tingling or numb, and we might not be able to move it very well. This happens when we put pressure on a nerve in our body, like when we sit on our foot for a long time or sleep with our arm under our head. When the pressure is released, we might feel a sudden burst of pins and needles as the blood flow returns to the area and the nerve becomes active again. It's like the feeling of ants crawling on our skin. It's usually harmless, but we should be careful not to put too much pressure on our nerves for too long.